HP Accessory 651176-002 manual UPS is in Auto-Bypass mode

Off	On	Off	On—Batt	On—Batt	On—Batt	On—Batt	Off	UPS is on battery (on page
			ery	ery	ery	ery		58)—No utility power
			capacity	capacity	capacity	capacity
			<25%	>25%	>50%	>75%
*	*	*	Off	*	*	Flashing	*	Overtemperature condition (on
								page 59)
Off	Off	On	Flashing	Flashing	Flashing	Flashing	Flashing	Internal UPS fault condition (on
								page 59)
Flashing	Off	Off	Flashing	Flashing	Flashing	Flashing	Flashing	REPO condition (on page 59)
*	Off	*	Off	*	Flashing	*	*	Site wiring condition (on page
								59)
*	Off	*	On	On	On	On	Flashing	Overload condition (on page
								59)—UPS power capacity is
								exceeded with no other faults
*	Off	*	Off	*	*	*	Flashing	Overload condition (on page
								59)—UPS power capacity is
								exceeded while other faults
								exist
Off	On	Off	On—Batt	On—Batt	On—Batt	On—Batt	Flashing	Overload condition (on page
			ery	ery	ery	ery		59)—UPS power capacity is
			capacity	capacity	capacity	capacity		exceeded while on battery with
			<25%	>25%	>50%	>75%		no other faults
Off	On	Off	Off	Off	Off	Flashing	Flashing	Overload condition (on page
								59)—UPS power capacity is
								exceeded while on battery with
								overtemperature fault
Off	Flashing	Off	Flashing	Flashing	Flashing	Flashing	Flashing	Unit is powering down
Flashing	Flashing	Flashing	Flashing	Flashing	Flashing	Flashing	Flashing	Checksum failure error (on
								page 60)

* This LED can be in any state.

For the location of individual LEDs, see "UPS front panel LED indicators (on page 8)."

UPS is in Auto-Bypass mode

The UPS transfers from Operate mode (on page 40) to Auto-Bypass when one of the following fault conditions is detected:

•Inverter AC over voltage

•Inverter AC under voltage

•Rectifier input over current

•Inverter output over current

•Inverter fault

•Heat sink over temperature

•Fan failure

•Overload

The load is supported, but not protected while in Auto-Bypass mode.

Troubleshooting 56